Comparison

KDIAG vs i

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

KDIAG

This app offers comprehensive automotive fault detection and OBD functions for various car brands. It provides professional diagnostic services to quickly identify and resolve car issues, making driving safer and smoother for enthusiasts and professionals alike. The app supports 8 languages and is free to use.

Highlights
  • Comprehensive automotive fault detection
  • OBD functions
  • System fault diagnosis for mainstream brands
  • Free to use
  • Supports 8 languages
  • Professional diagnostic services
Features
Read full description

The "KDIAG" automotive diagnostic app will provide you with the most comprehensive automotive fault detection and OBD functions, supporting system fault diagnosis for various mainstream brand cars and providing free use. Whether you are a car enthusiast or a professional technician, you can easily use it. The app also supports 8 languages to meet the needs of users worldwide. The app provides professional automotive diagnostic services that can quickly identify and solve automotive faults. Whether you are at home or on the road, you can easily use our application to ensure that your car remains in optimal condition. Download and experience our car diagnostic app to make your driving safer and smoother! "KDIAG"汽车诊断APP将为您提供最全面的汽车故障检测和OBD功能,支持多种主流品牌汽车的系统故障诊断并免费提供使用,无论您是一位汽车爱好者或专业技师,都能轻松使用。App还支持8种语言,满足全球使用者的使用需求。App提供专业级的汽车诊断服务,能够快速识别和解决汽车故障。无论您是在家里还是在路上,都可以轻松使用我们的应用程式来确保您的汽车保持最佳状态。快来下载并体验我们的汽车诊断APP,让您的驾驶更加安全和顺畅!

About

i

Features
Read full description

I-VENU APP can realize the whole process of tire pressure sensor activation/programming control through the direct connection of original part number scanning code or second filtering of car models; automatically generate diagnostic tire pressure report and store it in the cloud, which can provide intelligent escort for your tires' safety from accurate installation to scientific maintenance. ***Contact Us W: www.mythinkcar.com E: service@mythinkcar.com P: +1 833-692-2766 2151 S Haven Ave Unit 203 Ontario CA 91761 USA

Screenshots

KDIAG4 screens
i4 screens

Verdict

The call

The clearest difference is update cadence: KDIAG at fortnightly against i's every 4 months. i's advantage is iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

KDIAG ships an update fortnightly, i every 4 months. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 8 level
KDIAG versus i: the parameters behind the verdict, then further details
ParameterKDIAGi
PriceFreeFree
Rating3.3 (20 ratings) — better—
Positive reviews30.8% of reviews—
Number of ratings20 — better—
Update frequencyFortnightly — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.6 — better
Further details — not scored
Size74 MB86 MB
Age rating4+4+
Developer祖策 谢THINKCAR INC

In-app purchases

None

KDIAG

No in-app purchases

None

i

No in-app purchases

Questions

Is KDIAG free?
KDIAG is free to download, with no in-app purchases.
Is i free?
i is free to download, with no in-app purchases.
Do KDIAG or i have ads?
Neither KDIAG nor i shows ads.
Which is updated more often, KDIAG or i?
KDIAG ships an update fortnightly, and i every 4 months. Most recently, KDIAG was updated on November 3, 2026 and i on November 5, 2026.

Other comparisons